The Lankaran-Astara area, situated in the southern part of Azerbaijan, is a subtropical zone famous for its uniquely scenic landscapes and a myriad of plant and animal life. Highlights of this region include the Hirkan National Park and the Gizilagach Reserve.

The Masalli district, placed to the south of Azerbaijan, 270 km from the capital, boasts a subtropical climate, clear blue beaches adorning the Caspian Sea coast and a wealth of hot springs, the most renowned being Istisu. This thermal mineral spring, Istisu (which translates to ‘hot water’), has for a long time been a popular spot for individuals afflicted with rheumatism and other musculoskeletal and skin ailments.